import turtle

s = turtle.Pen()
s.circle(100,360,8)
s.up()
s.left(90)
s.forward(50)
s.down()
s.right(90)
s.circle(50,360,8)
s.up()
s.left(90)
s.forward(50)
s.down()
s.right(90)
s.circle(25,360,8)

turtle.mainloop()

